i am trying to use the perror function:
something like
perror("WRONG!!!");
but when i see the message in the terminal, it comes out like
WRONG!!! : Success
How can i change it to
WRONG!!! : WRONG!!!
well i just want to have my own custom message for the part after the colon...
You can't. The second part of the message is derived from the current value of the "errno" variable. The strings come from message files or directly from libc and cannot be altered.
If you want a completely customized message, just use fprintf instead:
fprintf (stderr, "WRONG!!! : WRONG!!!\n");